Publication: Atomically resolved band bending effects in a p-n heterojunction of Cu$_2$O and a cobalt macrocycle
Atomically resolved band bending effects in a p-n heterojunction of Cu$_2$O and a cobalt macrocycle
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Leuenberger, D., Zabka, W.-D., Shah, O.-F. R., Schnidrig, S., Probst, B., Alberto, R., & Osterwalder, J. (2017). Atomically resolved band bending effects in a p-n heterojunction of Cu$_2$O and a cobalt macrocycle. Nano Letters, 17(11), 6620–6625. https://doi.org/10.1021/acs.nanolett.7b02486
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We present a hetero junction based on macrocyclic hydrogen evolution catalysts (HEC) physisorbed on a single crystalline Cu$_2$O(111) surface. Angle-resolved X-ray photoelectron spectroscopy (ARXPS) provides the spatial resolution of the band bending within the first nanometer of the subsurface region. Oxygen vacancies on the Cu$_2$O(111) surface cause a downward band bending which is conserved upon adsorption of HEC layers of various thicknesses. This allows photoexcited electrons to be directed toward the surface where they can be m
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- Leuenberger, Dominik
- Zabka, Wolf-D
- Shah, Oliver-F R
- Schnidrig, Stephan
- Osterwalder, Jürg
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Leuenberger, D., Zabka, W.-D., Shah, O.-F. R., Schnidrig, S., Probst, B., Alberto, R., & Osterwalder, J. (2017). Atomically resolved band bending effects in a p-n heterojunction of Cu$_2$O and a cobalt macrocycle. Nano Letters, 17(11), 6620–6625. https://doi.org/10.1021/acs.nanolett.7b02486
